Cow-milking machine.



S. B. JENKINS. cow MILKING momma.

AYPHOATIOH FILED DEG. 31, 19. 1,066,430. Patented July 1, 1913.

4 BKEETW-SHBET 1.

WITNESSES Patented July 1, 1913.

M 9 1 mm SH N m IAAD K NG ENE. 1 UK? W m L P P A 4 SHEETS-SHEET 2.

l V VEN TOR s. a. JENKINS, COW IILKIHG IACHINE.

APPLIOAIIDI FILED DEC. 31, i912.

Patented July 1, 1913.

WITNESSES \i' %%@M v Attorney S. B. JENKINS. COW IILKIHG IAGHIHL- APPLIOATIOI nun nag. a1, 101:.

Patented July 1, 19l&

2110mm y NVEAVTOR 4 SHEETS-4113M 4.

a l v MM M V V MI VMM WITNESSES UNITED STATES PATENT OFFICE.

SAMUEL EDWARD JENKINS, OF KICHMOND, VIRGINIA;

-GOiI-MHIKING- MACHINE.

Beit kn ,wn that LSAMUE E. Jeni ns, "a citizen of-the- United States, residing at' R chmond, 'in the .'county ofIHenrico and.

of Virginia, .have; invented certain and useful Improvements in Cow-Milk- I specification, 7

ing: Machines, of whichv the following is e a Th s' inventionjrelates; to certain improvements in. and relating .to milking'inachincry; and the objectsand nature of themvention will besreadily. understood by those skilled in the art in the light of the followjing: explanation of the accompanying draw ings-illustrating what- I now believe'to be the preferred embodiment from :among. other '=formations, arrangements and. combinations within the spirit andscope of my invention; The nvention consists n certain novel features in construction an'dei'n. combinzv, tio'n's of elements as more fully and particularly set forth hereinafter. Referring tothe accompanying eraings r' Figure "1, is aperspective view of a machine constructed'i'n accordancewith my invention,- certain 1 parts being .shown in nori'nallowered or inoperative position. I Big, 2, is aside elevation, dotted lines showing certain parts elevated-v to'operativeiposition. Fig. 3,.is a top plan view. F 4, is a ver: tical longitudinalsection, on an "enlarged .,scale,-tl1'ro1igh aj-portion' of the machine:

Fig. 5, is a cross section on the line 5+5,

7 Fig. Fig. 6, is a detail-vertical section.

Fig. .7, is a detail'per'spective. Fig. 8, is a detail; horizontal section in the plane of the in; 8-8, Fig. 5.

In'the particular embodiment illustrated as an'example for purposes of explanation,

the'f machine is portable and'comprises a."

supporting stand, 'frame 'or'truclc In this examplefthe supportingfframe or truck consismof-a pair of rear-corner posts or up.- rights -upheld by and at their lower ends provided with supporting wheels or casters" 1-, said uprights beingrigidl'y connected to-,

1. ether' by elevated"transversejrigid cross bar 2 front corner-[ osts "or uprights 3, rigidly connected at their} upper. ends by elevated crossbar or member l, and attheir-lower endsgprovided withsupporting wheelsor f "Specification of Letters Patent. i Patented July 1) 19-1 Application fil-eaneemb'ei 31,1912. Serial No. 739,556.

' longitudinal reach bar jorgn ember i, at its Witli.-cross .bar 2, a-ndat-its.

rear end ri i front end rigid with the depcndingtubular member 6, and carrying -the operators seat 8, mounted on seatpost 9, rising from and carried byreach bar However, I do not wish to. limitmyselftojany particular'supporting stander truck con'structiomnoi' in fact are other features of my invention. limited to any particular construction or arrangement of supporting means, whether involving a wheeled truck or any ot-her.supporting frame. My invention involves pcculiar mechanism for manipulating "the cows teats to cause flow of milk from the udder through the-teats, and such.mecha nism is.designecl to. imitate, to a certain ex- I,

;ten t,'.the' milking operationof the human hand and to a certain extent the nursing operationoffa calf. although omitting the suc tionactio'n.

I usually neously ope-ratingpairs-0t teat applicators,

-massaging or compressing devices, one for eachteat. Each deviceconsists :of a pair of zv ertically elongated opposing jaws, ap-

; plicators or presser members having longitu'dinallyponeaved soft "or elastic opposing faces to longitudinally receive and. confine the teat.

The-teat engaging facesof the jaws are composed of longitudinal blocks 10, of any suitablesoft or elastic material such as rubber or the like, and theseblocks are centrally and longitudinally depressed or ooncaved throughout the lengths of their teat engaging faces to provide the longitudinalteat receiving, depression -11.- Each provide four similar simultajaw is formed of a-longitudina'ltbody or holder-ll usuallyformed of metal and providing a longitudinal-'downwardlytapered socket to removablyreceivea downwardly tapered soft blockor teat'engafging body 10, andflanges13, for confining the block 10, in theholder, soas to permit removal thereof when necessary for cleansing, re pair or renewal. The jaws of, each-pair are preferably similar in construction in so far as theholders and soft,'material blocks ust described are concerned, but said 'jawsare ditieqentlymounted andarc so arranged that in action one jaw a, is fixed or stationary while the other jaw b,"-is bodily -movable toward and fromthe fixed jaw to bring the movable jaw into and from -operative position with respect to the teat and further-- 1is, 'rockable on: a; transverse axis. to

massage or manipulate the teat in the re- 65 .slides by Sliding lthe cross rods 1:6, on the annularly and outwardly flanged nek135i,

side rods 15, after the various set screws quired manner to cause the'flow of milk. clamping the sleeves and guides to'the rods In the particular example illustrated, I5, and the slides have been loosened. By show a group of four similar pairs of teat these adjustments the'dis'tances between .the 5 pressing applicators or jaws arranged in pairs of teat jaws can be varied to properly 70 v two longitudinal rows and in two transverse locate said pairs wherever necessary to lacrows. The four pairs of jaws are carried commodate the teats of thelparticularcow and supported by a suitable frame work to be milked. The supporting frame forthe.

comprising the two main supportingside fixed jaws comprising rods 1'5, 16, is norm rods 15, and'a pair of parallel spaced cross mally'supported in a fixed position, while' rods '16, extending between and connecting the sli'desare longitudinally.reciprocated to K the side rods and at theirends coupled there completely open the pairs of jaws (Fig. .3) to by sleeves 17, loosely receiving said side to'receive the teats, ortoclose said jawsvon rods an d slidable longitudinally thereon. the teats and to -operat-iveposition (Fig. 4) Each crossrod 16 carries a pair of opposite Thesesslides can] be moved longitudinally fixed jaws a. vEach jaw .a, has a transverse and held in] the desired position by various eye 18, through which its supporting rod 16, means although in the example illustrated, v passes, said eye being longitudinally slidable I provided a reciprocatory connection. or." on its supporting rod and adapted to be .pull' rod 26, for this purpose at its. front. 2c clamped thereto in the desired adjustment end detachably coupled to the-cross rod 5 by set screw ,19. The movable jaws b, are through the medium of a socket 27, and, its 1 carried by longitudinal slides or reciproeatset screw. 'Q. j j ing frames 20, arranged above and spaced Various means can be provided to swing from the cross rods 16, and carried by and or rock'themovablejaws while said jaws are slidable through guides'2l, projecting later held' by the slides 20, in' operative position 9 ally from the upper ends-of the side edges holdingthe' teats against the fixed jaws.- For of the fixed jaws a. Each movable jaw is instance, show -a reciprocatory red 28,.ar-

hung from its supporting slide, 20, to swing :ranged longitudinally of jthe rows of fjaws w r on a transverse axis or pivotarran'ged in and adjustably, carr'yingc r oss-.j rods 29, rear of the upper portion of thetjaw and a loosely extendin-g through' eyes 29, project- 95 short distance below-the upper extremity of ingfrom the front sides'of the lower ends the jaw. In the partieularlexample illus of the'mov'able jaws, so that longitudinal: r trated, each movable jaw is formediwith a reciprocation of the rod 28,'will'simultane-' rearwardly extending rib providing" laterou'sly swing or rock allot-the movable jaws I ally projecting alined pintlesort'runnions' on the transverseaxes22. {In thejpa'rticular "'1 22, fitting and, turnable, in socketsv in the examplelillu'strated, .I show an open-top brackets 23 mounted }on the oppositesides horizontal tank 36 for supportingfthe teat of the slide 20, carryi'ng suchfjaw. i These jaw carrying. fr me. and the means for col; brackets 23, are adjustable longitudinally of looting the milk. The teat frame" carrying 40 the slide 20,..to adjust the movable jawand h t l w is o on y. n r va y 105 are normally fixed 'thereto by suitable. set arrang h ni s "t -i2 9 SQ tha 't' teat screws. The pintles22, constitute the trans jawsare verticallyarranged in'the tank-and ,vers'e axis or pivot on which the movable'jaw' spaced from the side Wal s: and bottom Swings as-hereinbefore described,- although thereof, v u 5 L 1 v of course other means for rockab'ly mount- 'Yfl- QS m m c n'b P OK Bdf' I '110 in jaws B, can be rovided. lPPP l /f l h P %show two paralilel slides 2Q o1'1'e for each although in theP tti ular example 111118- lQngitudinaI row of pairs of jaws, and each? Hated, Ishowsmdtahk internally provided v slide is carried by and freely-slidable with elevated corner suppontsforledges 31, I

, 5o through-the two jfixed jawsof its row and to removably uphold'sa 1d frame within the 11 I carries the two movable jaws of'its' rowl" tank nd So that'the'fr'an'iecan be'mo v 0." These two slides are'connected together at!" and from the tank through the open to their-rearends by a cross'bar.24, tocau se' here f. I shew-said fram p d il't the slides to" reciprocate iii unison. The' .tank by thefends of the frame bars1f5",resjt'{ slides are coupled to the cross bar 24, by ing onsaid ledges 81;. I-show the tank pro- 120 sleeves 2 5, slidable longitudinally. of said vided with a removable horizontal" pan or crossbar so that the slides can be adjusted flanged" false bottom 3 2, arranged below the toward and-from each other to vary the dis-. teat jaws to r'eceivethe milk from the teats; tanee between the'two longitudinalrows of This pan is provided with a screened bot, pairs of jaws when the set screws 19,- are tom discharge opening. 33,jimmedi ately'ov er 126 loosened so that the fixed jaws can be moved 'the open receiving end of'a horizontally disu longitudinally of their supporting'rods 16. posed "discharge spout 34, arranged belowo The airs of jawscan be adjusted toward the tank 30. This spout. as shown is formed and rom each' other longitudinally of the at its open receiving end with'anupturfied A .inthe bottom'of said tank so that-thespoutv can swing horizontally. on said neoklas its .vertical axis. I'sh'ow the spoutextending passing'up through an opening in the hottomof the tanlrjwith 'its fiangerest-ing' on the top face, of an.annulardepressedseat rests and on which itisslidable to the right or left to dischargethemilk into the bucket 'he th,er located .atthe' right, or left hand side ofthe machine. I

' fixed to the tank 30, so that the tank irief Variousmeansoanbe provided forearrying the tank .30,.in a projected foradvenced osition-beheath a'cow and for elevating the tank to-t-he'tudder to bring the teatjjawsinto operative position vith respectthereto.

show, a supporting armor horizontally? are 'ra'nged'and elongated frame 38, at one-end feet constitutes a1 forward or longitudinal continuation of sa d supporting arml At its opposite end said arm :38, is provided with a vertical-spindle 39, rigid therewithfa nd depending therefrom in. the 'tiihular'inember 6,

ofthe. wheeled truck. 3 TlieIspindle 'islvertically movable in said. lar member to support and guide the Y pportingarin 38,

v in its vertical, m0vements," and said-spindle or lever 40, hinged or Tulerume'd. at 41,-0n,

also forms a pivot or permitting. said arm to sWing laterally,\vhi c'h eyeht said spindle turns or rot'ates "in said {tubular member. i i

' 3 9, is acushioningT spring arranged in the'lovver end of thesoeket. (5,- to act on, the? spindle 39, when it drops underthe-'loadofi the arm 38 and parts carried thereby, to cushion the shock.

various'nieans can be provided for elevating the arm 38, and the tankBO, carried at the free end thereof, andfor controlling the vertical position of the tank; For-instance, I showa verticallyswingableyoke transversealined lpivots to ,the upper. ends of the truck posts or uprights {3, and jrqhi' thence extending iorwardlyand horizon tally' and atits'front free end provided wit j .a transverse portion 4Q,- QXtGXIdII IgL bQIIQalQ h and loosely engaging a longitudinal member or portion of the [arm 38f This transverse end "port-ion 42,.bf the lever. is formedt with a top socket or depression-43 immediately I,

matically return the handle ot), and rockahle v to the right of a vertical stop 'Ihe lifting lever is provided with an extension pro j ecting rearwalrdlyfbeyond the lever finlcrum and {mange handle 45. I preferablyfpro- I 'vide @vert'ically moi/able and horizont ally 'rookable tr'eadle or double foot piece 46, ar-

ranged below thehantlle 45, and connected, thereto by flexible pull connection 47. The. "treadle .fo'rm'e r tith,a' fcentral vertical e: ertically and rotatable erati vel on rigid vertical post 49, fixed to and ris- I 0m: the reach baroi'tl-if'g stand or'truck pe'rator sitting-0n .the seat'S, I

ble ansreadily accessible .to the operator ontlr S, are provided for-closingjthei pairs o also for oscillating or. rockingt-he inmfablo aws, wh le thus held in operative position,

.tomassage or manipulate the teats to'force the milk therefrom and into-the milk 'co1- let-ting pan 39,; I orinstance, I show the slide rod 26, extendedthrough. an opening in the rear end of the tank foO, and loohely and longitudinally through the arm 38, and;

t thetreadles -ttl, are re'adilyaocessible eat jaws together and hold; mgithe same in such operativeposition, and

a't its rear end, at a point'accessible from. f

the seat 8, provided with a pull'han dle 50 rigid therewithand by which the rod 26, d

. .85 'rearwardly and thereby close the p airsjof teat. jaws together and hold them in isueh,

can be pulled' rearwardly to draw- -the-sl ides operative position. i In the example ;illu

trated, the arm or elongated framef38fis' feomposed of several Y r 'tubularinembers and rlgid, el'tlctllitlOllflgqt-w arallel longitudinal.

ing members, and Ishow-the pull rodFL 6',]eX-.

tending longitudinally and loosely.[through the upper longitudinal tubular meinber of said arm. This upper tubulanmember. is

directly "coupled to the upper end of the 'arm-earryingjspindle.39; and is provided with a hor zontalrearward extenslon 51,

having a -longitudinall v' bifurcated rear end between the 'legs'of which the fvertieally arranged handle 50, is confined torecip'rocate; '.Tlie legs of 'said bifurcated end are formed withlongitudinalslots 52, and the handle 5Q, withlhteral stops 525, sontinetl toreci'pm:

cation in said-slots to liinitl the"reeiproation .of the handle and eonsequlent ly of theipull A coiled expansion spring 5}, is arrangedsaid; pullfrod and the handle 50, 'atjt-heir limits of forward movement and hence to yield'ingly]h oldf the teat jaws in open or inoperative position. TWhen .the handle 50, 'is.

pulled rearwardly andthe-p'airs o f-teat. jaws are thereby'fclcsed to operative? position, the "spring frt, iscom'pressed, so that the instant the handle 50,15 released from the p ull.of the operators hand, thegspring 5st, w llautoteatjaws to normal positii'ins, thereby open in}: the pairs'of teat release the teats. Suitable means, accessible from the seat =8, are provided: to reciprocate the rod 28,

- and link 57. The slide 56, is carried by and longitudinally movable in the lower longi-.

tudinal tubular member of the arm 38, and

and at its rear end pivotally joined to the lower end of said hand lever. The hand lever 55 1s arranged vertically beside the handle 50, and intermediate its-length is ;mounted on said handle through the medium of transverse or horizontalfulcrum 60, so that OSCIHQi/IOII of said lever will reciprocate the rod 28, and cause the teat manipulatingrocking movement or oscillation of the teat jaws b. A coiled spring 61, constantly acts on the teat jawsb to y'ieldingly holdthe lower ends thereof swung to 'their'limits of movement away from the lower ends 1 of fixed jaws 12,.with the upper ends of the pairs 'of jaws closed to ether. -Thisspring 61, also-yielding-ly hol s the hand lever 55,

- limit away from the'handle 50..

In operation, the machine is wheeled up to? the right hand side ofthe cow so that the tank 30,1 arranged directl under the udder. [The tank-30, is elevate to-bring the teat j'awsinto proper'pofi'tion lengthwise of 3 OP theteats (located in theen pairs of jaws) and bearing upwardly against or lifting the :udder; The tank 30, is elevated by the operator on seat8. The operator places his feet onitreadle 46, and bears down thereon and also by hand bears down on'handle 45, and the'lever 40, is thereby! swung upwardly so 't hat its frontend 42, bears upwardly against the am 1 38 and slides 'rearwiu'dly thereon and'thereby' elevates sa'id arm and its spindle '39, to carry the-tankfBO to the desired elevated "position. fT-he operator I 1 holds the tank thus'elevated by keeping his -vertical movement in 'a straight line; When feet on treadle 46.1- The spindle 39,..slides upwardly in'itsvertical socket and thereby guidesthe arm 38, and tank 30, to direct the operator is assured that the teats are all properly located in the openpairs-of jaws, he pulls back on the handle 50, and thereby closessaid jaws together'at-their upper ends to'compress the'teatsat their bases or upper ends, While holding back on the handle 50,

against the-tension of spring 54, the operator then presses the upper end ofthe hand lever 55, forwardly, and thereby rocks the jaws b, on their. transverse axes so that their lower ends swing) rearwardly toward the I lower ends of the fixed 'jaws; Th sact ontransversely compresses the teats rogres sively 1 from the udder. toward their lower with i'ts upper or handle end swung to its 2. I11 m i g. appa u to produce thepeculiar teat manipulating,

pressing or massaging action of the jaws to force the milk from the teats. The tank 30, when lifted by the arm 38, causes the upper rounded soft ends of the teat'jaws to press upwardly against and lift the udder to imitate the action ofa calf in hunching the udder when nursing, whereby certain advantages are attained. The 0 rator always has the pairs of jaws un er. perfect control and can vary the pressure thereon and permit the same to completely open whenever desired.

If the cow should start forward while the tank 30, is in operative position, no damage need be done, for when the cows leg strikes the tank or the tank supporting arm, theentire structure can 'swingforw'ard with the spindle 39, turning in socket 6, as the arm will be forced out of the holding depression .43, in; the front end of lifting lever 40, and

will slide forwardly on the free end' of said lifting lever, being supported by the spindle 39. The treadle 46 can also. swing on its post 19, so asnot to obstruct the arm in this swinging. The arm can be swung back against stop 44, and to normal position. It should'also be 'noted that the frame work carrying the jaws'can be lifted bodily from the tank with the jaws for cleansing or other purposes and that the 'milk collecting pan that the interior of the tank and spout 34, can be inspected and cleaned. In order to free the jaw carrying frame for removal from the tank, it is only necessary to de .32, can the'n'also be lifted from the tank so tachthe removable operative connections be- I tween slide rod 26, and cross bar 24, and between reciprocatory-rod 28, and its op crating connection 56.

It is obvious that variouschanges, modifications and variations might be resorted to, that features might be omitted and structures added, without departing from the spirit and scope of my invention and hence I do not wish to limit myself to the exact.

disclosure hereof. I 7

What I claim is 1. In milking apparatus, a horlaontally disposed open-top tank provided with a re- Y movable milk-collecting pan arranged within the'tank, said tank provided (with a bottom discharge, said pan having an outlet to said discharge, supporting means for said tank, and teat receiving and manipulating means'in said tank-and provided with actuating devices; 1

supporting a 7 means.

o and operating porting means,

and arranged over said m ans, mechanism tor raising and lowering e same, a milk-collecting receptacle in means having a milk discharge coinrising a. f laterally swingable discharge fgltfa-jnd teat-receiving and manipulating- '.;'rsvioes carried by said supporting means milk; firomtheteats into said receptacle,

testing, means.

3,,"M lking apparatus comprising a portable stand, an elevated arm so lecting and discharging means carried .by

ithe jiree end of said arm, and teat-receiving and manipulating devices carriedby the tree end of said armfor forcing milk from the tests and into; said milk collecting means. 7 at. A milking machine comprising'a portable stand, a laterally-swingable and verticallyanovable armprojecting horizontally from said stand and at its free end provided with and carrying teatreceiving and ma;-

.nipulating devices for forcing milk from the teats, means for actuating said teat manipr'l lating' devices, and mechanism for controlling the vertical position.v of said arnr and teat devices with respect to said stand. v

5. A milking machinecomprising a poi -t able standhavinga i operators seat and provided with a vertically movabletreadle f and with a vertically/swingable hand lever operatively connectedby a pull connection withsa'id treadle, carried by said stand, said arm being elevated by said lever and. held thereby injthe desired vertical position, teat receiving and manipulating devices carried by said arm, connections tor said devices. 6; A, milking machine comprising fsup a series of normally ,fixed teat "receiving jaws,-a series of correspondingteat receiving jaws, means-whereby said corresponding jawsare mounted to ropk on transverse axes, a slide carrying said qorre' sponding jaws bodily toward and'froni said fixed jaws, a handle for moving said corresponding jaws through the medium of said slide tosaid fixed jaws, a spring mechanism for yieldingly holding jsaid ocorrespoiiding jaws in the opposite direction,'and means corresponding jaws coinfor rocking 'said I device yieldingly holding prising a spring said aws in one jaws, devices for opening and closing said jaws comprising means yieldingly main= taining said jaws open and manually controlled means for holding said jaws, closed against the tension of said means, and .mech

ing. jaws, receptacle to force ithe teats to said jaws and forlaterally comsaid teat. receiving devices provided with ac for elevating said arm and controlling the vertical position thereof, milk-cola vertically movable a'rm' 10f said spring means,

direction and a hand, lever carried by said handle for rockii' g-f said spending teat receiving jaws, means said corresponding ]&WS are mounted anism for gradually closing "said jaws toward each other from the {upper ends thereof toward the lower ends thereof.

8..In milking apparatus, several nori-mally-fixed vertically dis-posed teat receivcorre sponding meansfo r holding pressing. the teats there against progres ,sivcly from their upper portionsto. their lower portionsto force milk therefrom, sup- ,porting mechanism, projecting horitherefrom, manually actuated means being normally and' yjieldingly held in, open inoperative position, and manually actuated devices for, yieldingly holding the same in closed operative position,

.9. In milking apparatus sever alnormally-fixed vertically disposed teatjreceivin-g jaw's, corresponding means for holding the teats to said jaws and for laterally compre'ssing the teats there against progressively from their upper portions te their to force milkv therefrom, supactuating devices for said means,f said pairs ofjaws and corre lower portions porting mechanism,

sponding means being relatively movable to and from closed operative and open i-noperative positions, and hand act'uated'devices tor yieldingly holding said jaws and corresding means in closed position during said teat compressing operations of said cor-. responding means. a

10. In milking apparatus, in combination, a series of-pairs of cooperating teatmanipulating jaws, spring means yieldingly maintai'n'l ng the pairs of jaws separated opened position, hand operated connections for yieldingly holding the jaws in operative teat pressing position againstthe tension and manually operated means for rocking certain of said jaws to progressively compress the tea-ts from their upper ends toward their discharge ends while said pairs of jaws are ,held in operative position. I

IL A milking machine comprising supporting means, a series of normally fixed teat receiving jaws, teatreceiving jaws, means whereby said corresponding jaws are-mounted to rock on: transverse axes, manually controlled .means'for moving said corresponding jaws bodily toward and firom said fixed jaws, and means for rocking said corresponding jaws comprising a spring device yieldingly holding said jaws in lone direction and a manually controlled device for rocking said jaws in the oppo site direction.

12. A milking machine comprising supporting means, a series of normally fixed teat receiving aws, a series of corre i g sa s esr i sjlawsibcdily award a series of corresponding where and from said fined jaws, a handle for mov ing 'said corresponding jaws through the medium of said slide to said fixed jaws, a

' spring mechanism for yieldingly holding said'corresponding jaws inthe sponding jaws.

'13. In-milking apparatus, in combination,

a series.;of-pairsof teat supporting means,

manipulating members, a slide for opening and closing. said pairs of members ,by movhandle connected to a transverse axis,

ing the same bodily,

manual operating means for said sllde,

members to manipulate thete'ats.

14. In milkin'gapparatus, in combination, a pair of tea-t manipulating-members, one of said members being mounted to rock on tively movableto and from opened inoperative and closed operative positions, a

members. in closed operativexposition, and

means for rocking said rockable memb er; whilesaid members are held in closed p'osi tion by said handle. l5.v In milking apparatus, a pairof teat manipulating members, one

one of said members being mo able 'inde:

pendently; of the other,-said other member being movable :to and from closedfoperative" position with respect .to the rockable mem-j ber,'a manually operated device connected .to yieldingly hold said other member; in closed operative position, and means for rocking said rockable member comprising a spring device yieldin'glyholding saidmemher in one direct-ion and a hand levercarried by said m'anually operated device for swinging said memberv in the opposite .dig .rection.

17, A milking machine-comprising ja stand, a vertically movable arm carriedfand guided .bysaid stand and projecting for-- wardly therefrom and at its frce end vided with and carrying teat receiving and opposite di-. rection, and means for rockmg sald correstand a spring device yieldr ingly holding said slide in one direction, and manually actuated means foroperating said said members being relayieldingly ""hold said in combination,

rockable independlently of the othermember, saidimembers be- 0 and from opened stand, a

saiderockable member held in closed .po f

' pendently pro-@ manipulating devices, a vertically movable hand lifting leverfulcrumed separately from said arm for raising said arm and determining the verticalposition thereof,

and operating means vfor said teat receiving devices.

'18. ;A milking machinecomprising a having a vertical guide, a vertically swingablelever fulcrumed tosai'd stand,'an

arm extending forwardly from said stand and at its. free end provided'with milking devices, manually a controlled actuating means for said milking devices, said arm providedwith a post confined to said guide arid vertically desired vertical position. v

19. A milking" machine comprising a stand having a verticalfguide, a laterallyswingable and vertically movable arm having a post turnable'in saidguide to center said arm as it swings laterally and movable vertically in said guide with said and, said arm at its.free endf'providedwith milking devices,- and a manually-operated verticallyswingable lever fulcru'ined to said'stand sep arately from saidfarm to raise the arni and' determine the vertical position thereof, said ereo'f.

arm resting on saidle-ver and swingable latmilking f ,ma'chine comprising a I vertically movable arm extending forwardly therefrom, and-at itsffree end era-lly independently th movable therein as the arm is I raised and lowered, said'arm-being raised: by saidleverandmaintained thereby in the provided with milkingfdevices', and means.-

for" freely elevatingif-and depressing said arm and for maintaining the same at the desired elevation comprising a foot piece whereby saidarm can be held in the desired elevated position by t the foot.

. 2L. In milking -app'aratus, in combination,

a support, a pairof fixed teat jaws, av rod for supporting the same, rod being ad- V just-ably supported, said jaws being ndee rod, apalr of rockable jaws c'oiiperating with said first 'menltioned jaws, a sli'de car rying. said rockable jaws','sa1d 'rockable Jaws being adjustable toward and from each 'other, means for reciprocating said slide, and reciprocating means for rocking said rockable jaws. 5

adjustable longitudinallyofthe .1. I i-testimony wherebf I afiiirmy signature I in presence of-two wit ness'es.

f W'itness'es: JoHN' T. Gopomr, 7 RICHARD W; Jonas.

' [SAM E EDWARD JENKINS} 

